
What We’re Looking For:
- Strong experience in Python (5+ years).
- Hands-on experience with any database (SQL or NoSQL).
- Experience with frameworks like Flask, FastAPI, or Django.
- Knowledge of ORMs, API development, and unit testing

About Wissen Technology
About
The Wissen Group was founded in the year 2000. Wissen Technology, a part of Wissen Group, was established in the year 2015. Wissen Technology is a specialized technology company that delivers high-end consulting for organizations in the Banking & Finance, Telecom, and Healthcare domains.
With offices in US, India, UK, Australia, Mexico, and Canada, we offer an array of services including Application Development, Artificial Intelligence & Machine Learning, Big Data & Analytics, Visualization & Business Intelligence, Robotic Process Automation, Cloud, Mobility, Agile & DevOps, Quality Assurance & Test Automation.
Leveraging our multi-site operations in the USA and India and availability of world-class infrastructure, we offer a combination of on-site, off-site and offshore service models. Our technical competencies, proactive management approach, proven methodologies, committed support and the ability to quickly react to urgent needs make us a valued partner for any kind of Digital Enablement Services, Managed Services, or Business Services.
We believe that the technology and thought leadership that we command in the industry is the direct result of the kind of people we have been able to attract, to form this organization (you are one of them!).
Our workforce consists of 1000+ highly skilled professionals, with leadership and senior management executives who have graduated from Ivy League Universities like MIT, Wharton, IITs, IIMs, and BITS and with rich work experience in some of the biggest companies in the world.
Wissen Technology has been certified as a Great Place to Work®. The technology and thought leadership that the company commands in the industry is the direct result of the kind of people Wissen has been able to attract. Wissen is committed to providing them the best possible opportunities and careers, which extends to providing the best possible experience and value to our clients.
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Context for the Candidates:
Blockchain engineers are tasked with building secure, scalable, and high-performance decentralized applications. This discussion focuses on how to utilize key technologies—Node.js, Rust, Go, TypeScript, Ethers.js, viem, and Hardhat—in smart contract and blockchain system development, while addressing the practical challenges that arise in such projects.
Key Discussion Points:
• How do you integrate Node.js, Rust, Go, and TypeScript in blockchain-backed applications?
• Discuss the trade-offs between using Rust or Go for performance-critical blockchain services.
• What are the key challenges in ensuring the security and scalability of smart contracts using tools like Ethers.js, viem, and Hardhat?
• How do you approach testing, debugging, and deploying smart contracts in a decentralized environment?
• Share best practices for gas optimization, contract upgradability, and backend scalability.
Evaluation Criteria:
1. Technical Knowledge:
• Strong knowledge of Node.js, Rust, Go, and TypeScript with practical experience in blockchain development.
• Proficiency in Ethers.js, viem, Hardhat, and smart contract lifecycle (development, testing, deployment).
• Understanding of security best practices, performance optimizations, and scalability in decentralized systems.
2. Problem-Solving and Integration Skills:
• How candidates approach integrating smart contract solutions with backend services using Node.js, Rust, Go, and TypeScript.
• Solutions proposed for common challenges in blockchain projects such as gas fees, security vulnerabilities, and system bottlenecks.
3. Experience and Expertise:
• Minimum of 2 years of IT experience, including hands-on development with the specified technologies.
• Practical knowledge of blockchain architecture, consensus mechanisms, and decentralized application deployment.
4. Innovation and Critical Thinking:
• Candidates’ ability to think creatively about system architecture, proposing scalable and secure solutions for blockchain-based applications.
• Discussion on the future potential of blockchain technology and how the tech stack can evolve.
5. Communication and Team Collaboration:
• Clear articulation of technical challenges and how to address them in a team setting.
• Ability to lead or contribute to discussions in a way that encourages collaboration and team-driven problem-solving.
If you love to work in a fast-paced startup environment and desire to solve some very
challenging problems using technology, we want to hear from you.
We are looking for an enthusiastic and energetic individual to work as a Senior Software
Developer. You will be involved in working on multiple products for the scaling and growth
stage of the lifecycle.
We work closely with the real world,. If you are interested to grow and learn in your career
and at the same time work on products for the 1Bn user market, we encourage you to apply.
Responsibilities
● Managing and guiding a team of junior developers for timely delivery of product and
milestones
● Optimization of the application for maximum speed and scalability
● Implementation of security and data protection
● Design and implementation of data storage solutions
● Design & Build: Designing and developing high-volume, low-latency applications for
mission-critical systems, and delivering high-availability and performance.
● Collaborate - Collaborating within your product streams and team to bring best
practices and leverage a world-class tech stack.
● Measurable Outcome - You will need to set quantifiable objectives that encapsulate
the quality attributes of a system. The fitness of the application is measured against
set marks.
● DevOps - You will need to set up every essential (tracking/alerting) to make sure the
infrastructure/software you built is working as expected.
● Design and development of our REST APIs
● Help maintain code quality, architecture, and automation
Required Knowledge and Skills
● 3 - 5 years of experience working in backend development technologies and DevOps
● Highly curious and ready to dive into complex technical challenges.
● Proficiency in development and scripting in Python, Django/Flask framework.
● Database design and management, including being up on the latest practices -
bonus points for MySQL and MongoDB
● User authentication and authorization between multiple systems, servers, and
environments
● Integration of multiple data sources and databases into one system
● Management of hosting environment, including database administration and scaling
an application to support load changes
● Setup and administration of backups
● Understanding differences between multiple delivery platforms such as mobile vs
desktop, and optimizing output to match the specific platform
● Creating database schemas that represent and support business processes
● Implementing automated testing platforms and unit tests
● Understanding of “session management” in a distributed server environment
● Server management and deployment for the relevant environment
● Appreciation for clean and well-documented code
● Hands-on experience with architecture and structural design patterns
● Expertise in designing, developing, deploying, and integrating RESTful APIs
● Ability to understand business requirements and translate them into technical
requirements
● A knack for benchmarking and optimization
● Proficient understanding of code versioning tools, such as Git
Personality
● Requires excellent communication skills – written, verbal, and presentation.
● You should be a team player.
● You should be positive towards problem-solving, have a very structural thought
process to solve problems
● Interest to work in a high paced start-up environment with a large amount of learning.
● Good understanding of different frameworks, and be able to pick up new
technologies at ease.
● You should be agile enough to figure out a need for new technologies/frameworks
and learn new technology for better product performance
Position – Software Engineer
Essential Job Functions:
- Develop code for system changes or new modules within company and architecture according to specifications and standards
- Participates and contribute in formal and informal code reviews
- Prepares and executes accurate unit test plans, test data, and test modules and scripts
- Documents code changes and unit test results per Best Practices
- Performs production support and troubleshooting and maintenance (defect resolution)
Required Skills:
- 3-6 years of hands-on experience
- Expert level understanding of all phases of SDLC, preferably with Agile methodology.
- Strong coding experience with Java, J2EE, SQL. Strong experience in java frameworks, especially spring framework.
- Solid experience developing with SQL queries, stored procedures, views and triggers for Oracle databases.
- Understanding of multi-tier architecture, Web based development, and Services Oriented Architecture. Experience coding REST and SOAP services.
- Excellent communication (verbal and written) and interpersonal skills. Able to step into complex situations and take responsibility.
- Solid knowledge working with version control systems like bitbucket and build tools like maven.
- Strong problem solving and conflict resolution skills.
Preferred Skills:
- Able to guide junior developers.
- Ability to learn and master internal frameworks quickly.
- Deep knowledge in writing complex unit tests.
- XML and knowledge of generating Java data binding code from XSDs
- Knowledge of Tomcat, WebSphere, WebLogic and IBM MQ
- Experience with Agile methodology.
About CapitalCloud, A Bottomline Company:
Bottomline Technologies provides collaborative payment, invoice and document automation solutions to corporations, financial institutions and banks around the world. The company's solutions are used to streamline, automate, and manage processes involving payments, invoicing, global cash management, supply chain finance and transactional documents. Organizations trust these solutions to meet their needs for cost reduction, competitive differentiation, and optimization of working capital.
Serving industries such as financial services, insurance, health care, technology, communications, education, media, manufacturing, and government, Bottomline provides products and services to approximately 80 of the Fortune 100 companies and 70 of the FTSE (Financial Times) 100 companies.
Bottomline is a participating employer in the Employment Verification (E-Verify) program EOE/AA/M/F/V/D/E-Verify Employer
Bottomline Technologies is an Equal Employment Opportunity and Affirmative Action Employer.
● You’ve been building the backend for web applications.
● You have experience with any of these backend programming languages --
Python, NodeJS or Java.
● You write an understandable, testable code with an eye towards
maintainability.
● You are a strong communicator. Explaining complex technical concepts to
designers, support, and other engineers is no problem for you.
● You possess strong computer science fundamentals: data structures,
algorithms, programming languages, distributed systems, and information
retrieval.
● You have completed a bachelor's degree in Computer Science, Engineering or
related field, or equivalent training, fellowship, or work experience.
SpringML is looking to hire a top-notch Data Engineer who is passionate about working with data and using the latest distributed framework to process large datasets. As a Data Engineer, your primary role will be to design and build data pipelines. You will be focused on helping client projects on data integration, data prep and implementing machine learning on datasets. In this role, you will work on some of the latest technologies, collaborate with partners on early win, consultative approach with clients, interact daily with executive leadership, and help build a great company. Chosen team members will be part of the core team and play a critical role in scaling up our emerging practice.
Title-Data Engineers
Location-Hyderabad
Work Timings-10.00 AM-06.00 PM
RESPONSIBILITIES:
Ability to work as a member of a team assigned to design and implement data integration solutions.
Build Data pipelines using standard frameworks in Hadoop, Apache Beam and other open-source solutions.
Learn quickly – ability to understand and rapidly comprehend new areas – functional and technical – and apply detailed and critical thinking to customer solutions.
Propose design solutions and recommend best practices for large scale data analysis
SKILLS:
B.tech degree in computer science, mathematics or other relevant fields.
Good Programming skills – experience and expertise in one of the following: Java, Python, Scala, C.
- Should be very strong Scala development(Coding)
- With Any combination of Java/Python/Spark/Bigdata
- 3+ years experience in Core Java/Scala with good understanding of multithreading
- The candidate must be good with Computer Science fundamentals
- Exposure to python/perl and Unix / K-Shell scripting
- Code management tools such as Git/Perforce.
- Experience with large batch-oriented systems
- DB2/Sybase or any RDBMS
- Prior experience with financial products, particularly OTC Derivatives
- Exposure to counterparty risk, margining, collateral or confirmation systems
- At least 2-5 years of working experience in web services, preferably in Python
- Should have built and released APIs in production
- Experience working with RDBMS and NoSQL databases
- Designing thoughtful, extensible data models
- Knowledge of identifying, defining and building micro-services
- Working knowledge of GCS, AWS, Azure or any other cloud provider
- Aggressive problem diagnosis and creative problem-solving skills
- Good communication skills - written and spoken








